@Manual{R-base,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2022},
    url = {https://www.R-project.org/},
  }
  
@article{attempt,
	title = {attempt: Tools for Defensive Programming},
	author = {Fay, Colin},
	year = {2020},
	date = {2020},
	url = {https://CRAN.R-project.org/package=attempt}
}

